Posts for devops


Install Keycloak on CentOS 7 with MySQL backend

Keycloak is an open source Identity and Access Management solution aimed at modern applications and …


Use Kubernetes Certificate Manager to automatically add SSL/TLS certificates to ingresses

Kubernetes Certificate Manager (cert-manager) is a native Kubernetes controller helping you to …


Docker on CentOS 7 machine with XFS filesystem can cause trouble when d_type is not supported

At my work, we try to automate almost everything. We're using Docker to containerize our in-house …


Backup Percona XtraDB Cluster or Galera Cluster with TwinDB

Database servers and clusters should be backed up regularly to prevent data loss when an error or …


High Available MySQL database cluster to eliminate your next SPOF

In high-available production environments like a Software-as-a-Service Cloud environment, you have …


Extend Kubernetes Persistent Volumes

In Kubernetes it is possible to use Persistent Volumes to add persistent storage to your Docker …